Description : LM520 Bar Code Scanner (Standard Range - with RS232 Interface) The LM520 Scanner is a compact decoded single-line scanner for fixed-position or embedded applications such as conveyor library document tracking chemical and blood analyzers vending machines POS terminals and other attended or unattended scanning applications. The LM520 is a complete scanning system ready to plug in and scan. The LM520 presents a fast easy and low-cost way to incorporate scanning into any application where you need to read a bar code. Advanced RapidStart circuitry creates the fastest start-of-scan in the industry giving snappy performance and a reduction in misreads at start up An impressive read range from 2.0 to 36.0 inches (5.1 to 91.4 cm) and excellent pitch and skew angles makes this scanner suitable for many tightly specified bar code reading applications. To assure reliable integration the LM520 scanner uses an industry standard RS232C interface which allows the scanner to be mounted up to 50 feet (15.2 m) from the host system. Good read-no read result switches make integration with other automation control equipment a snap. Four separate triggering modes can be used to scan a bar code: An external switch such as an output line from a Programmable Logic Connector (PLC) - software commands from the host system - the LM520 can be set to scan continuously - or the LM520 also uses a unique motion detection technique called LaserSense to only scan when an object is passed in front of the Scanner.